Combined typewriting and computing machine



. Oct. 2l 1924. 1,512,508

o. THIEME COMBINED TYPEWRITING AND COMPUTING MACHINE Filed Sept; '7, 1922 Patented Oct. 21, 1924,

UNITEDA STATES PATENT OFFICE.

OTTO THIEME, OF HARTFORD, CONNECTICUT, assIeNoR To UNDERWOOD COMPUTING MACHINE COMPANY, OF NEWYORK, N. Y., A. CORPORATION OF NEW YORK.

COMBINED TYPEVIRITING AND COMPUTING MACHINE.

Application fledeptember 7, 1822. Serial No. 586,585.

To all whom t may ramera.:

Be it known that I, OTTO THIEME, a citi-y zen of the UnitedStates, residing in Hartford, in the county ofHartford and State of Connecticut,` have invented cer-tain new and useful Improvements in Combined Typewriting and Computing Machines, of which the following is a specification.

This invention relates to a combined typewriting and computing machine of the Igeneral type shown in United States patent to G. C. Degener, No. 1,271,290, dated July 2, 1918, in which a typewriting and a `computing action may be carried on concomitantly under the control of a single set of numeral keys.

ln this general type of machine,` the numeral keys when actuatedA Operate type actions to print numbers, and, at the same time, enable the setting of 'index pins in a valuating mechanism to determine the eX- tent of rotation of computing wheels of one or more computing heads, by 'a source of power, to correspondv with 'the 'particular numeral keys struck. The numeral keys are used to select the particular.' lpins to be set. and lare connected to bring into play automatic power-actuated mechanism for performing the actual work'of setting the pins, and thus relieving'the numeral keys of this burden. By this means also. vthe numeral keys can be freely actuated without actually set-ting thev index lpins unless 'the source of power mentioned is brought into play.

The effectiveness of 4the numeralA keysv to set in motion the computing mechanism, is governed by theshifting between effective and ineffective positions 'of alight tripper, which is universally actua-ble by all of the numeral keys. This tripper isicontrolled from the carriage as to' its effective and in'- ellective positions, to correspond withnon'- computing portions of the travel of the typewriter carriage and with computing zones in the travel of the typewriter carriage. This tripper controls the-bringing into'fp'lay of the source of power, soft-hat when the tripper is in its ineffective position,` lthe source Of power ca'nnot'be rendered effective to set the pins, and, hence, the numeral keys may be actuated to typewrite'without bringing the computingmechanism into play. The

effectiveness of` the tripper while governed from the carriage by automatic mechanism acting to determine vcomputing zones, may

be silenced or rendered effective at will by manual controlling means.

A lock is also used to prevent the `actua tion of a numeral key in digit ordenominationalL columns corresponding'to-thegwriting of other characters than numbers. This is more especially applied tothe denomina- ,i

tional columns Correspending to the decimal point, the space between hundreds and thousands, thousands and millions, etc. This y lock, as shown in the aforesaid patent, is preferably Ope'rable'at other times for 'various'sa'feguarding purposes. l

` In'the patentreferredto, thenumeral keys are locked by a blockingdevicemovable into the common path of movement of a set of `arms, one lconnected 'to each numeral key.

The blocking device is in the form of an arm actuable by a collar or stop on a shiftable rod, in turn actuated by a shifter or plunger connected to what is therein termed av Zone-controller, andA which carries certain cams cooperating` with a tappet on the platencarriage. The sameshift rod, which operates the key-blocking device, alsov serves upon 'a lesser movementjhereof, to set the tripper for the motor drive of the Comput ing mechanism; and this movement of the shift rod is determined by one of the cams on the zone-controller. The mechanism just referred to is more particularly shown vin Figure 7 of the aforesaid patent.

An object of the 'present invention is the provision of means whereby the adjustable column or comjgniting` zone stops, on the Stopbar of the platen carriage, may be used to control the Operations, aforesaid, of the numeral-keyflockingl means. and of the drive of the computingr mechanism. Otherwise expressed. obje'ctkof 'the-,invention is the combination in one;7 simple,: durable and unitary' structure,` positionable at will, and with a1minimum`oftrouble, at any desired computing zone position'on` the platen carriage, of a column stop"andcams for efas shovvn in United vStates patent to W. right, No. 1,244,398, dated 4ctober 23, 1917, Yfor i causing the canriage ifor ..jthe moyable element of the( computingmechanism to have its step-by-step movement v.with Mthe platen carriage fromrcolumn position of Ahigher denomination'fto `collunn rsitio'n of lower denomination. f It maybe t "e computi'- ing head whic-his ginoved .byfthis ,piclgndfp carriage with respect to the master Wheel, as in the aforesaid patent; or it may .be A,the master Wheel which is moved thereby with respect yto the computing head."

`Further `objects Iof the invention :are fthe provision of means for' automatically doel@ ing' the numeral lreys'against operation eX- cept When use of .the same in .fa com-.pitting .use of the same above-mentioned unitary `.col-

umn-stop 4and cam device `as the .means for locking the keys between `computing zone positions; and the use, of .such device, 'zas the means Vfor locking 'd0-Wn fthe aforesaid shifter or follower', ont of :the path of the cams on thatv device, to prevent vibration and rattling of the :shifter and' its connections by the cams during :returnmovement of the carriage, :the cams, thrlougl-i tithe computing Zones.

Another feature of .the invention is fthe provision of a simple, effective and fneliiabile automatic lock for the key-locking .and tripper connections, and means, also tinable @to the unitary stop and vcam device, iloal :automatically releasing` such. flockV upon :arrival of the platen carriage at position forcemputing. f

Other features and .advantages :will lereinafter appeara -In the accompanying drawings,

'Figure l is a skeleton perspective, ,sho-iving the connections by -Whidh 'the Stripper is controlled bythe column-s"tops` on -the type Writer-carriage, and showing `-a vInl-me'nal-'infr and its connections to vthe draw-rod, 'through Au'rl'iicli lit acts on the 'pin-setting motorecontrolled mechanisms.

Figure 2 is .a view, in :rear elevation, of 'the cam-device onions of :the .column-stops on lthe column-stopfbar, and the 'mechanism immediately zoo-operating "therewith ffor ac'F tion'lon the trpperf" Figure 3 is 'a view, in side elevation, look ing from the right, of the mechanism shown in :Egnre 2.

FfgurellV is a .top plan vienv of the parts vshonin ,in Figures 2 and 3.

Eigureo isa view, in rear elevation, showing thef'acton `of the 'cam-device on the 'column-stop v"for holding the tripperf'convnections inactive, vwith the numeral-keys inoperative, after passage through a computing fzone.

Figure 6 is a View in perspective of the column-stop and `*attached cam-plate viewed 'from wthe front, and 'showing the `piek-up `hook for'computingdiead-carriage in op fera'tive yrelation with respect thereto.

The' V:parts yas shown in the drawings are :designed for application to 'an Underwood itypewriting machine. The tripper which controls'ilthe key-locking mechanism and other parts, and the lreydoclring mechanism and other kparts controlled by thetripB may, :as sta-ted, @be .of the style shown in United States patent to O. Degener,No. 1,27.,- '290, :dated July 2, 1918, to which reference Lis 'hereby made for a more complete expo- .sition-of'such parts. The computing' mechanism itself is not shown, because it is old and well understood. It may be of the character shown in the Degener patent, usf. ,referred to, in which the computinghead 'has iettenfeed movement to bring one after another of the number-Wheels thereof into registration with the master-Wheel; or it :may ybe that shown in United States patent .to iDegener, No. 1,294,425, dated February 18,1919, in which the computing head is stationary, and in which provision if n de 'for a step-bystep movement of the master Wheel"therethrough from one to another Vof v:the numbenwheels. Vhether it be the ccmpatina` head or the master-Wheel which is movable, a carriage is provided for the niet lable part, :such as shown in either of the Degener patents, referred to, and a pick-up .connection 'is provided from such carri-agie to the platen-carriage of the typevvritingy inaichine. The connections of the carriagle for such movable yelement of the computini mechanism, `to the platencarriaae, and the mannen of operation of the saine may, ai; :1s-fated, be as'sho'wn in United States iatent itoVVgllVrig'ht, No 1,244,398, dated'tctober v23,.1-9l7 tto `v'vliich reference is hereby alst made foir a more complete exposition et tbe purpose and application of the pres nt mention. `.Tfn-the following description, vtte ,paints :shown inthe drawings of the pre At application, and corresponding to the pa: {sh'oum in thefdra'wings of the patents, above .,referred'to, 'will be lettered as letterer in the drawings of such Vpatents Where practicable'.

.The carriage of the typetvriting` machine (not sli/own); is provided 'with the usual lill column-stop-bar or rack 10. One or more column-stops a' are adapted to be set at selected column-positions or computing zones along the stop-bar. The stop 10L has two jaws 11 and 12. The jaw 11 is serrated to have a plurality of teeth 13 adapted to be interlocked with the teeth 14 of the rack. The jaw 12 is hinged at 16 to the jaw 11, and a coil-spring 17 acts to cause the jaw 12 to close on the bar, while permitting the jaw 12 to yield in the placement and removal of the stop from the bar. A detent 18 on the jaw 12 snaps over the front edge of the bar to hold the stop to the bar when the stop is thrust into hon'ieeposition on the latter.

Fast, as by means of screws to the stop 10, is a camplate 19, having a cam 21, formed on the left-hand end (Figure 2) thereof, for co-operation with a roller 22, set into the upper end of a head-piece 23 on the end of a plunger 220. The plunger 220 is pivotally supported at 25 to a rocker 26, pivoted at 27 to a plate or bracket 28. The plate or bracket 28 is conveniently carried on the rear wall of the casing or stand 30, in which the usual denominational stops 31 have selective movement up and down for co-operation with a tooth 32 on the under face of the jaw 11 ofy the column-stop. Posts 33 serve to space the plate orV bracket 28 from the casing 30, and screws 34, passing through the plate 28 and through the posts 33, thread into the casing 30, to hold the plate 28 in position. To define the extreme up and down positions of the plunger 220, and to hold the rocker 26 for movement parallel to the plate 28, the rocker has an arcuate slot 35 the-rein, to receive a headed screw 36, which passes, from the rear. through the slot and through a spacing-post 37, set between the rocker and the plate 28, finally to thread into the plate 28.

The plunger 220 is pivotally connected at 38 to one arm 39 of a lever pivoted at 40. The other arm 41 of this lever' .is provided with a plate 42, forked or bifurcated at 43, to receive a pin 44, carried by an arm 221 on a rock-shaft 222. The pin 44 projects entirely through the slot 43, and, at its rear., has attached thereto one end of a spring 45, the other end of which spring is attached to a pin 46 on the rlever-arm 41.v 45, by holding the pin 44 in causes the arm 221 to follow the up and down movements of the lever to which the plunger 220 is connected. When, therefore.v the cam 21 depresses the plunger, to swing up the lever arm 41, the arm 221 is also swung up. This movement of the arm 221 draws down a link 224 to depress a lever 225, against the action of a spring 226. The lever 225 is provided with a toe 227, arranged to engage a pin 228 on a segment 229. The segment 229 meshes with a cormechanism will be silent` The spring the slot 43,`

to a computing zone or cnlumn, the s responding segment 230, pivoted on a shaft 231. The segment 229 is connected, by means et a spring 234, to a lever 232, mount;- ed on the saine pivot 33 as is the lever 225 and the segn'ient 229. The segments 229 and may be rotated by a finger-piece from the position shown in Figure 1 to a position in which the spring 234 lies to the other side of the lever 232, and back again (as more fully illustrated in Figures 7 and 8 of the Degener Patent llo. 1,271,290, above referred to), the movements 0'1"' the segments being limited in both directions by enlarged teeth on one or both of them at the ends thereof. The spring 234, in either position,v tends to draw the lower partl of the lever 232 and segment 229 toward each other, so as to rock the lever 232 with respect to the segment. In the posit-ion shown in Figure 1, this is prevented by the spring 226, which is stronger than the spring 234, and causes pin 236 to hold up an arm 237, secured to the lever 232, and forming a part thereof. Another arm 238 of the lever 232 is bifurcated at its upper end to engage the opposite sides of the pivot 231 of the segment 230, and thus to limit the back and forth swing o?" the lever 232.

lVhen the parts are .in the position shown in Figure 1, the actuation of the plunger or shifter 220 by thecam 21 on the stop dey presses the lever 225 against the tension oi the spring 226. permitting the spring 234 to act, sc that the lower end ot the lever will he drawn to the lett, thereby pulling on .a link This link is connected to roch a lever 240, which, in turn, pushes on a linl: 241. connected to rock the silencer or controller for the tripper (not shown in the present drawings, but shown and described in connection with Figure 7 of the a'toresaid Letters Patent to Degener No. l; 271.290).

Under these conditions. with the parts arranged as shown in Figure 1. when not in a computing zone, that is to say. when the cani 21 is not in engagement with shifter or plunger 2.20. then the tripper` t not shown) will be held in its raised position. and, even though it is vibrated byY partial depression of a numeral-key, the computing lf it be desired to throw the computing mechanism ont of action, even when itc-emes ments 229 and 230 may be manipulated bv the linger so that the spring 234` although thereby thrown to vthe other side ot the lever 232, will still draw the lower arm of the lever 232 toward the segment 229, but in the opposite direction, wherein the siliencer or controller will be in its raised position, hoidiinqr 'the tripper in ineifective position.

If the arm 225 should be depressed at this time under the action oft the plunger 220, it would merely act idly against the spring 223, and there would be no tendency 'for the lever 232 to rock to such a position os to lower the tripper. because the spring,` 234 now acts in the opposite direction. The pin 228, which normnlly holds the Asegment against backward rotation9 and, in fact.

gives it a counter-rotation to aid the movement ot' the lever will now be entirely clear olf the lever so that the lever 225 will have no tendency to swingthe lever 232.

As shown in the patent to legener lilo. 1,271,2903 above referred to7 certain sateguarding mechanisms are provided for preventing` the actuation ot the computing mechanism tune times. f1 'feature of' this safeguarding mechanism is the locking` thereby ot the numereldreys when writing; in a denominational column .corrcspendingv to acomma between hundreds and thousands, etca and 'to the decimal point. its to this locking ot the numerel-keys7 the mechanism is as, follows.

Erich numeral-lieviever 4f? hes connected thereto a link e8, the other end o which is .Il connected to one arm of a bell-cranlrlevcr 4.9; the other arm ot which. bell-cranlrlever 49 has connected 'thereto a linl' or draw-rod 20. Depression ot a nuineraldrey, therefore, in addition to swinging` a type-bar in the usuel manner as7 for insta-nce. in the the Under vood standard typewriting` ma chin@ also eltects n'ioveinent oit the di'fonverod 20, to institute a. number oli operations or movements relating; to the computing mech-- anism.

As more fully described in the legener Patent No. 1,271,290, each draw-rod 20 (see vFigure 16 ol4 said Degener patent) has connected thereto al lever 'for ellecting e set-ting` ot the pin-setting;` interponent7 and each oit such levers has an arm thereon, by means of which the movement ot the lever. and7 con sequently, of the lever-key, may be blocked (see Figure 11 of said Degener patent),

when a blockingv device is interposed in the th ot movement ot such arm. rlVhis bloclc ingr device is in the 'torni et e lever through an aperture in which theI link 241 passes` rlhe linlr 241 when the plunger 220 (see Figure 1) operated by the cam 217 may move freely through the bloclrin g device without movingthe latter to etlctive position and. there-- tore, without blocking movement ot the numoral-keys. A more extensive movement ot the linlr 24.1 may, however, be effected through the plunger 220i which will cause the blocking' device to be thrown to effective position.

This more extensive movement of the linl; 21l1 causes e collar 253 thereon to engage and actuate the blocking device; and isv et tested by the eatin-'plete 19. ldor this purby the numeraldreys et inopporpose9 there are on the under edge of the camplate 19, and shown as spaced at three letter-space-distances apart. three tappets or teeth These represent the positions for the commas end decimal point in the coin-A pitting Zone. rllhe cam 21 at the end oit the cam-bar 19a as heretofore mentionedg de presses the roller on the'top et the plun;`- er to the level ot the lower edge 51 ot the Cain-plete. The roller thereafter rides alongv the lower edge of the cam-plate and is held to the latter by the tension of the spring,i 226. @n arriving; at the irst of the teeth 50, howeven the plunger is given a Ahirther depression?. and, in being thus further depressech acts in the same manner es betere through its connections to the link 2&1, giving` the latter linl en additional thrust in the same direction as when thrust by the cam 21. causes the collar 253 on the linlr 24.1, by engagement with the blockingV device, to actuate the letter, es stated. @n passing the tirst of the teeth 50, the spring 2267 by throwing the plunger to the edge 51 ot the cam-plate,

pitting zones. For effecting such locking olf.

the numeral-keys, e cam 52, forming one edge of a. tooth oit greater lengthV than the teeth 50, is provided on the end oit the carnplate opposite the cem 21. This cam 52 causes a depression ot the plunger sutlicient-to permit a locking arm 53 to be swung by e spring 56 over the top of the plunger. The spring 56 is a coil-springconnected at one end to an ear 57 on the locking army and et its other end to an ear 58 on the lined plete Until the cam 52 depresses the plunger sui'liciently to permit the locking` arm to pass thereover the spi' 55 merely causes the locking arm to beer against the side of the head of the plunger without inter'lering with the up and down movement et the latter. 1When the plunger or shifter 220'is depressed by the cam 52. the link 2st-1 is thrown to the right a suliicient distance to cause the collar 253 thereon to act to block movement ot the numeral-keys in the saine manner as when the plunger or shifter is depressed by the teeth or cams 505V except that in this instance the collar 253 will continue to hold the numerallrey-bloclring d ovice in slectivey position until the Vplunger This additional thrustV or shifter 220 is released. The plunger or shifter when acted upon by the cam 52 has a greater movement than when acted upon by lthe teeth or cams 50, but this greater movement is not transmitted to the collar 253 in such manner as to cause the mechanism to be jammed at the blocking device, because of the flexible joint or connection provided by the spring 45. A locking down of the plunger by the cam 52 has the further function of preventing vibration and rattling of the plunger by and over the teeth upon return movement of the carriage.

In order that, in locking the plunger down by the cam 52, it may not be disabled for operation by a cani 21 on a succeeding camplate 19, if any, such succeeding cam-plate, and, in fact, each cam-plate, has on its front face (see Figure et) a tooth Which is V- shaped to provide two cam-surfaces. As the cam-plate advances into the computing zone, the front cam-face 6() of the tooth 59 engages a pin 61 on the locking arm 53, thereby rocking the latter around its pivot 66 against the action of the spring 56, to clear the lock-arm from the plunger; iv iereupon the plunger rises under the action of the spring 226, to be free to respond to the action of the cam 21. On the return movement of the carriage, vthe cam-plates pass over the plunger in the locked-down position of the latter untilthe cam-surface 63 on the other side of the tooth 59 acts upon the pin 61 to unlock the plunger. The ear 64 of the plate 28, which serves as a pivotal support for the locking plate 53, is provided with a stop-pin 65, to limit the throw of the locking plate under the action of its spring 56. Movement of the locking plate in the other direction may be determined by the cam-plate 19, or by the rear face of the casing 30.

Although the numeral-keys are thus automatically locked as the cam-piece 19 leaves the computing Zone, they may be unlocked so that dates and other Writings involving` numerals may be Written between column- Zone positions. Such unlocking of the numeral-keys is effected by the means heretofore described for disabling the computing mechanism when the latter is not desired. This, it will be recalled, Was done by throwing, to the right, the finger-piece 235 with the segment 230, so as to drawl the link or rod 24:1 to the left. VI`here,f )re, although the plunger or shifter 220 may continue to be helddoivn by the locking plate 53, the collar 253 inay,lnevertheless, be Wit-hdraivn to the left to release the blocking device and numeral-key-levers for Writing between computing-zone positions. Such movement of the finger-piece 285 has no effect upon the lever 225 and connections therefrom to the plunger 220, because the pin 228 on the segment 229 is at-this time swung away from the toe 227 through which it co-operates with the lever 225.

The column or computing zone stop 10a, in addition to having combined therewith the cam-plate 19, also acts as the pick-up for the computing-head carriage, that is to say, for the carriage, by means of which the master-wheel has its step-by-step movement through lthe con'iputing head from higher to lower denominational columns or number- Wheels, or by means of which similar movement of the computing head is effected with respect to the master-Wheel. As hereinbefore stated, this pick-up mechanism may be of the kind shown in the 'United States patent to lValter 1Vright, No. 1,244,398 of October 23, 1917, and so is not shown or described in the present application. In the present application, only the hook itself, With its shoulder 62 thereon, for co-operation with the jaw 11 of the stop 10, see Figure 6, is shown. For the manner in which the hook 55 is operated to be picked up and released from the stop 10a, reference is made to the aforesaid Wright patent.

Variations may be resorted to Within the scope of the invention, and portions of the y improvements may be used Without others.

Having thus described my invention,I I claim:

1. In a typewriting and computing machine having a normally disabled computingl mechanism; numeral keyk levers; a carriage movable in letter-feed and return directions; a cam or dog settable on the car-I riage in selected columns or computing-Zone positions; means for setting the computing mechanism for operation thereof; and a plunger engageable by the cam or dog to operate said setting means when a computing zone is reached by movement of the carriage.

2. In a typevvriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof when a computing zone is reached by movement of the carriage and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; and another cam or dog on the carriage for initiating` the key-setting action.

3. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof when a computing Zone is reached by movement of the carriage and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing Zone; a cam or dog on the carriage or initiating the action of the setting means Yfor the computing mechanism; and another cam or dog on the cai '"iage tor initiating the key-setting action, said cams or dogs being settable as a unit in any selected computing- Zone position.

Ll. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return direc-- tions; means for setting the computing mechanism for operation therecil when a computing Zone is reached by movement oi the carriage, and :tor setting the numeral keys against operation at the punctuation positions of the carriage in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initiating the keysetti'n-g action; and a column or comliutingone stop for the carriage; settable thereon in selected position, and i'orming; with said cams or dogs, a unitary structure.

5. In a typevvriting and computing machineV having a normally disabled computling mechanism; numeral keys; a carriage movable in letter-feed and return directions; means tor setting the computing mechanism for operation thereof When a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation at the punctuation positions o' the carriage in the computing zone; a cam or dog on the carriage ior initiating the action 'ot the setting means ier the ccmputing mechanism; another cam or dog en the carriage for initiating the key-setting action; and a plate settable in selected column or computing-Zone position on the carriage and having said cams or dogs spaced thereon.

6. ln a typeivriting and computing machine having a normally disabled computing i mechanism; numeral keys; a carriage moyable in letter-feed and return directions; means for setting the computing mechanism tor operation thereof when a computing Zone is reached by movement of 'the carriage, and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing Zone; a cani or dog on the carriage for initiatingl the action of the setting means 'for the coniputing mechanism; another cam or dog on the carriage for initiating the key-setting action; a plate settable in selected column or computing-Zone position on the carriage and having said cams or dogs spaced thereon; and a column or computing-Zone stop tor the carriage having said cam plate unitary therewith. Y

heisses 7. ln a typewriting and computing machine having a normally disabled computingl mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereoi when a computing zone is reached by movement 'of the car-- riage; and for setting the numeral keys against operation at the punctuation positions oi the carriage in the computing Zone; a cam or dog on the carriage for initiating the action of the setting means tor the computing' mechanism; another cani or dog on the carriage ttor initiating the key-setting action; a plate settable in selected column or computing-Zone position on the carriage and having said cams vor dogs spaced thereon; a column or computing-Zone stop Afor the carriage having said cam plate unitary threivith; and means whereby said combined stop and cam plate may be secured to the carriage in any desired column or computing-zone position.

8. a typeivriting and computing nia-- chine having a normally disabled computing' mechanism; numeral keys; a carriage movable in letter-iced and return directions; means for setting the computing mechanism for ope ation thereoi' when computing sone is reached by movement ot the carriage; and ier setting the numeral keys against operation at the punctuation positions ci the carriage in the computing zone; a cam or dog ou the carriage 'for initiating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initiating the key-setting action; and a plate, attachable to the carriage, having thereon the cam or dog 'for setting the computing mechanism, and having the key-setting cams or dogs spaced at punctuation distances apart therealong.

9. ln a typewriting and computing inachine havirl a normally disabled computing` mechanism; numeral key a carriage movable inletter-eed and reti'irn directions; means ttor setting the computing mechanism for operation thereo'iC when a computing ZoneV reached by movement of the carriage; and 'for setting' the numeral keys against operation at the i'umctuation positions ci the carriage in the computing zone; a cam or dogI on the carriage tor initiating the action of the setting means for the computing mechanism: and another cam or dog on the carriage lor initiating the keysetting action; said setting means comprisino' shifter engageable and variably movable by the cams or dogs for said several operations.

l0. ln a typeivriting and computing ma chine having a normally disabled computing mechanism; numeral keys; a carriage movable in ctt-er-iieed and return directions; means ior setting the computing mechanism lul lll-3 lit) lsu

,computing mechanism; another for operation thereof When a computing zone is reached by movement of the carriage; and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing-n'iechanism; another cam or dog on the carriage for initiating the key-setting action; said setting means comprising a shifter engageable 'cy all f said cams or dogs, but movable by the key-setting cams or dogs a greater distance than by the cam or dog which sets the computing mechanism; and lug or pick-up device effective only upon such greater movement of the shifter.

Ill. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a. carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof When a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing` zone; a cam or dog on the carriage for initiating the action of the setting means for the cam or dog on the carriage for initiating 'the key-setting action; said setting means comprising a shifter having a spring device for urging the same into t-he path of said cams or dogs; means for holding the shifter out of the path of lthe cams or dogs during return movement of the carriage; and means for releasing the shifter to action.

l2. In a typevvriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof When a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing Zone; a cam or dog on the carriage for initating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initating the key-setting ac'- tion, said setting means comprising a shifter having a spring device for urging the same into the path of said cams and dogs; means for holding the shifter out of the path of the cams or dogs during return movement of the carriage; and a trip on the carriage for releasing the shifter to action.

13. In atypevvriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism and a tooth on vthe cam-piece for operation thereof When a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing zone; a cam or dog on the carriage for initating the action of the setting means for the computing mechanism; ano-ther cam or dog on the carriage for initiating the key-setting action; said setting means comprising a shifter movable to an inoperative position out of the path of the cams or dogs; a detent for holding the shifter in such inoperative position; and a tooth on the carriage for disengaging the detent from the shifter preliminary to entry of the cams or dogs into the computing Zone for the computing operation.

lll. ln a typewriting and computing machine; numeral keys; a 'carriage movable in letter-feed and return directions; means comprising a shifter for locking the numeral keys against operation at the punctuation positions of the carriage, in the computing zone; a cam-piece on the carriage having a cam for effecting the key-locking action of the shifter; and means for holding the shifter out of the path of the cam during movement of the carriage in return direction. f

l5. ln a typewriting and computing machine; ninneral keys; a carriage movable in letter-feed and return directions; means comprising aI shifter for locking the numeral keys against operation at the punctuation positions of the carriage7 in the computing zone; a cam-piece on the carriage having a cam for effecting the key-locking action of the shifter; means on the carriage for throwing the shifter to an ineffective position out of the path of the cam,` for movement of the carriage in ret-urn direction; al spring detent for holding the shifter in such ineffective position; and a detent on the carriage for moving the spring detent to release the shifter preliminary to entry of the cam into a computing zone in forward direction for a computing operation.

16. ln a typewriting and computing miachine; numeral keys; a carriage movable in letter-feed and return directions; means comprising a shifter for locking the numeral keys against operation ait the punctuation positions of the carriage; in the computing zone; a cam-piece on the carriage having a cam for effecting the key-locking action of the shifter; a tooth or cam on the cam-piece for thro-Wing the shifter to an ineffective position out of the path of the first-mentioned cam, for movement of the carriage in return direction; a spring detent for holding the shifter in such ineffective position; for disengaging said spring detent for the shifter preliminary to 'entry of the first-mentioned cam into the computing zone in forward direction, for a computing operation.

i7. ln typewriting and 'computing machine; `numeral keys; carriage `movable in letter-feed and return directions; means comprising a shifter for locking the ni'uneral keys against 'operation at the punctuation positions of the carriage, in the 'computing zone; cam-piece on the carriage having a cam for effecting the key-locking action of the shifter a tooth 4or `cam on the camepiece for throwing the shifter to an ineffective position 'out of the path of the first-mentioned cam; for movement of the carriage in return direction; a detent pivotally mounted to be rocked into position to hold the Ashifter in its ineffective position; and a tooth on the cam-piece for rocking the detent out of holding engagement with theshifter :preliminary to entry `of the Erst-mentioned cam into the computing Zone in forward direc tion, for a computing operation.

18, lin a typeivriting and computing machine; numeral keys; a carriage movable in letter-feed and return directions; means com*L rising a spring-pressed shifter for llocking the numeral keys against operation at the punctuation positions of the carriage, in the computing Zone; a cam-piece on the car riage having a cam for effecting the ieylockino action of the shifter against the action of its spring; a tooth or cam on the cam-piece for Lnrowing the shifter against the action of its spring to an ineffective position out of the path of the firstanentioned cam; for movement of the carriage in return direction; a detent pivotally mounted to be rocked into position to hold the shifter in its ineffective position; and a 'tooth on the cam-piece for rocking the detent out of holding engagement' with the shifter preliminary to entry of the rst-mentioned cam into the computing Zone in forward direction; for a computing operation.`

i9. ln a typewriting `and computing ma chine; numeral keys; carriage movable in letter-feed and return directions; means for locking the numeral keys against operation at the punctuation positions ofthe carriage in the computing acne, comprising connections having a limited throw; a shifter for actuating said connections; a cam or dog on the carriage for moving the shifter to effect the limited th' w of said connections; means on the carriage for effecting a greater movement ofthe shifter to a posi tion out. of the path of said cam; and aii'exible joint for the shifter to said connections to permit of such greater movement of the shifter 'Without corresponding movement of said connections.

20. ln a typewriting and computing machine; numeral keys; connections to the numeral keys for setting valuating devices for the computing mechanis1n;means, having a limited throw, for disabling said setting connections; a carriage movable in letter-feed 'and retu-rn directions; a :cane piece op ble by the canrpiece for effecting the limiter'L throw of the Vdisabl'i-ig means at the punctuation positions in the computing Zone; means on the carriage for effecting a greater throw of the shifter to a position out of the path of said cam; anda flexible joint for the shifter to the disabling means to pel"- mit of `such greater throw of the shifter Without cor-responding throw :of the disabling means.

2l. ln a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a normally disabled yconnectfion to the numeral `keys 'for ser fthe 'driving connections fof the compu ing mecl'ianisni; connections to the num-v eral keys for setting va'luating devices for the computing mechanism; a carriage movable in 'letter-feed and 'return directions; means for setting the ey connection for drive of the computing mechanisnnand for disabling the key rconnections "to the valuating devices; comprising -a shifter; a cam on the carriage for effecting one movement of the shifter to set the key `connections for drive Iof the computing mechanism; and another cam on the carriage for effecting another movement of the shifter l"to disable the. key connections to the valuating devices.

in a typewriting and computing machine having a normally disabled computing n'iechanism; numeral keys; a normally disabled connection to the numeral keys for setting 'the driving connections of the coniputing mechanism; connections to the numeral keys for setting valuating devices for the computing mechanism; a carriage movable in letter-feed and return directions; ineanslfor setting the 'key connection for drive of the computing mechanism, and for disabling the key connections to the valuating devices; `comprisi-ng a shifter; a cam on the carriage for effecting o-ne movement of the shifter to setthe 'key connection Vfor drive of the computing mechanism; another cam on the carriage for effecting another movement of the shifter to disable the key connections to the valuating devices; and a column or computing zone stop on the carrief/'e having said Acams unitary therewith for placement in selected column positions.

2B. ln a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a Acarriage movable in letter-feed and ret-urn direct-ions; means for setti-ng the "computing mechanism for operation 'thereof When va computing Zone is reached `by movement ofthe carriage, and for setting the numeral keys attachable to the carriage; a shifter A against operation except in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; another cam or dog on the.` carriage for initiating the keysetting action; and a. column or computingzone stop for the carriage, settable thereon in selected position, and forming, with said cams or dogs; a unitary structure.

24. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions;

means for settinov the computing mechanism for operation thereof when a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation at the punctuation positions of the carriage in the computing zone, and except for operation in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; other cams or dogs on the carriage for initiating the key-setting actions; and a -column or computing-zone stop for the carriage, settable thereon in selected position, and forming, with said cams or dogs, a unitary structure.

25. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof when a computing zone is reached by movement of the carriage; and for setting the numeral keys against operation except in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initiating the keysetting action, said setting means comprising a shifter engageable by all of said cams or dogs; but movable by the key-setting cams or dogs a greater distance than by the cam or dog which sets the computingmechanism; and a lug or pick-up device effective only upon such greater movement of the shifter.

26. In a typewriting and computing machine having a normally disabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereof when a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation except in the computing zone; a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initiating the keysetting action, said setting means comprising a shifter having a spring device for urging `the same into the path of said cams or dogs; means for holding the shifter out of the path of the cams or dngs between computing zones; and meals for releasing the shifter to action.

27. In a. typewriting and computing machine having a normally ydisabled computing mechanism; numeral keys; a carriage movable in letter-feed and return directions; means for setting the computing mechanism for operation thereofI when a computing zone is reached by movement of the carriage, and for setting the numeral keys against operation except in the computing zone;` a cam or dog on the carriage for initiating the action of the setting means for the computing mechanism; another cam or dog on the carriage for initiating the key-setting act-ion, said setting means comprising a shifter having a spring device for urging the same into the path of said cams or dogs; means for holding the shifter out of the path of the cams or dogs between computing zones; and manual means for releasing the shifter to action for writing between computing zones.

28. In a typewriting and computing machine; numeral keys; a carriage movable in letter-feed and return directions; means comprising a shifter for locking the numeral keys against operation except in the computing zone; a cam-piece on the cariage hav ing a cam for effecting the key-locking action of the shifter; and means for holding the shifter out ofthe path of the cam during movement of the carriage between computing zones.

29. In a typewriting and computing machine; the combination with a platen-carriage, numeral-keys and computing mechanism, of a column or computing-Zone stop on the platen-carriage; and means on the stop for causing the numeral-keys to be locked against operation between computing zones.

30. In a typewriting and computing machine, the combination with a platen-carriage, numeral-keys and computing mechanism, of a column or computing-zone stop on the platen-carriage, means on the stop for causing the numeral-keys to be locked against operation between computing zones, and manual means for releasing the numeral-keys for operation between computing zones.

3l. The combination in a typewriting and computing machine having a platen-carriage, numeral-keys and normally disabled computing mechanism, of a column or computing-zone stop on the platen-carriage, and means on the stop for rendering operative the drive of the computing mechanism, when a computing zone is reached by a movement of the platen-carriage, and for locking the numeral-keys against operation between computing zones.

32. The combination in a typewriting and computing machine having a platen-carringe, 'numerahlieys and normally disabled computing mechanism, of a column or computing-zone stop on the platen-carriage, means on the stop Jiol" rendering,` operative the drive of the computing mechanism, when a computing zone is reached by a movement of the platen-carriage, and for `locking the numeral-keys against operation between computing zones, and manual means for disabling the computingmechanism, and 'for releasing the muneral-keys for operation between computing-'zone positions.

33. The combination in a type-writing and con'iputin` machine havingl a yplaten-carriage, muneral-leys and normally disabled computing mechanism, oit a column or computing-Zone stop on the platen-carriage, means on the stop for rendering operative the drive of the computing` mechanism, when a computing Zone is reached by a movement of the platen-carriage, and for locking the mnneral-keys against operation between computing Zones, and manual means connected to simultaneously set the drive for the computing mechanism, and release the numeral-ke3`fs for operation between Comput ing Zones.

34. In a typewriting and computing machine, the combination with a platen-can riage, numeral-keys and computing mechamsm, of meanson the platen-carriage for isi non cam or dog for effecting' an operative setting;L

of a drive tor the computing mechanism.

37. In a typewriting and compuiting` 'machine having aplatenea'rriage, and a device settable in selected column-position on the platen-carriage comprising a column or computing-'Zone stop, means for locking the nnmeraleleys against operation betveen computing zones, and means `for releasingthe numeral-keys for operation in the computing zone.

o'TTo Tina-Mn Witnesses MERCEDES J. WALSH, JOHN J. KENNEDY. 

